LOW-MELTING GLASS MAINLY FOR SOLDERING MAGNETIC HEAD MEMBERS Russian patent published in 1995 - IPC

Abstract RU 2044710 C1

FIELD: glass industry. SUBSTANCE: low-melting glass has, wt.-% boron oxide (B₂O₃) 38.6-48.9; zinc oxide (ZnO) 9.3-14.7; lithium oxide (Li₂O) 0.1-2.7; sodium oxide (Na₂O) 7.8-16.3; vanadium oxide (V₂O₅) 27.4-39.6; aluminium oxide (Al₂O₃) 0.1-3.0; barium oxide (BaO) 0.5-4.0. Glass properties: coefficient of temperature stretching is (93-135)·10^-71/^°C, spreading temperature is 520-560 C, microhardness is 440-470 kgs/mm², bubble quantities in the volume 1,0 mm³ of glass is up to 1, water resistance is 6.3-27.5% Glass is used for making magnetic heads, recording devices and computers. EFFECT: enhanced quality of glass. 2 tbl

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RU 2 044 710 C1

Authors

Maksimov N.N.

Dates

1995-09-27—Published

1992-09-28—Filed